Use Jsr305State.DEFAULT instead of IGNORE as a default value

idea/idea-analysis/src/org/jetbrains/kotlin/idea/compiler/IDELanguageSettingsProvider.kt

@@ -44,7 +44,7 @@ object IDELanguageSettingsProvider : LanguageSettingsProvider {
             val compilerArguments = settings.mergedCompilerArguments as? K2JVMCompilerArguments ?: continue
 
             val jsr305state = Jsr305State.findByDescription(compilerArguments.jsr305)
-            if (jsr305state != null && jsr305state != Jsr305State.IGNORE) {
+            if (jsr305state != null && jsr305state != Jsr305State.DEFAULT) {
                 map.put(AnalysisFlag.jsr305, jsr305state)
                 break
             }

idea/testData/highlighterJsr305/project/Default.kt

@@ -0,0 +1,5 @@
+import foo.A
+
+fun main(a: A) {
+    <warning descr="[NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS] Expected type does not accept nulls in Kotlin, but the value may be null in Java">a.field</warning>.length
+}

idea/testData/highlighterJsr305/project/Ignore.kt

@@ -0,0 +1,5 @@
+import foo.A
+
+fun main(a: A) {
+    a.field.length
+}

idea/testData/highlighterJsr305/project/Warn.kt

@@ -0,0 +1,5 @@
+import foo.A
+
+fun main(a: A) {
+    <warning descr="[NULLABILITY_MISMATCH_BASED_ON_JAVA_ANNOTATIONS] Expected type does not accept nulls in Kotlin, but the value may be null in Java">a.field</warning>.length
+}

idea/tests/org/jetbrains/kotlin/idea/highlighter/Jsr305HighlightingTest.kt

@@ -19,7 +19,6 @@ package org.jetbrains.kotlin.idea.highlighter
 import com.intellij.openapi.module.Module
 import com.intellij.openapi.roots.ModifiableRootModel
 import com.intellij.testFramework.LightProjectDescriptor
-import org.jetbrains.kotlin.cli.common.arguments.K2JVMCompilerArguments
 import org.jetbrains.kotlin.codegen.forTestCompile.ForTestCompileRuntime
 import org.jetbrains.kotlin.config.JvmTarget
 import org.jetbrains.kotlin.config.KotlinFacetSettingsProvider
@@ -46,13 +45,36 @@ class Jsr305HighlightingTest : KotlinLightCodeInsightFixtureTestCase() {
                 super.configureModule(module, model)
                 module.createFacet(TargetPlatformKind.Jvm(JvmTarget.JVM_1_8))
                 val facetSettings = KotlinFacetSettingsProvider.getInstance(project).getInitializedSettings(module)
-                (facetSettings.compilerArguments as K2JVMCompilerArguments).jsr305 = Jsr305State.STRICT.description
+
+                facetSettings.apply {
+                    val jsrStateByTestName =
+                            Jsr305State.findByDescription(getTestName(true)) ?: return@apply
+
+                    compilerSettings!!.additionalArguments += " -Xjsr305=${jsrStateByTestName.description}"
+                    updateMergedArguments()
+                }
             }
         }
     }
 
-    fun testSimple() {
+    fun testIgnore() {
-        myFixture.configureByFile("A.kt")
+        doTest()
+    }
+
+    fun testWarn() {
+        doTest()
+    }
+
+    fun testStrict() {
+        doTest()
+    }
+
+    fun testDefault() {
+        doTest()
+    }
+
+    private fun doTest() {
+        myFixture.configureByFile("${getTestName(false)}.kt")
         myFixture.checkHighlighting()
     }